import React ,{Component} from 'react'
import Hello from './components/Hello'
import Welcome from './components/Welcom'
import Zi from './components/Zi'
//创建外壳组件

// class App extends Component{
//     render(){
//         return (
//             <div>
//                 hello react
//             </div>
//         )
//     }
//   }
  
//   export default App
export default class App extends Component{
  render(){
      return (
          <div>
              <Hello/>
              <Welcome/>
              <Zi/>
          </div>
      )
  }
}

 